<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <form action="">
        <input type="text">
        <label >
            <input type="checkbox">同意
        </label>
    <label for="isagree">同意</label>
    <input type="checkbox" name="" id="isagree">
    <!-- label标签负责提高交互体验。 -->
    <select name="" id="">
        <option value="1">男</option>
        <option value="2">女</option>
    </select>
    <!-- select标签负责下拉框。 -->
     <button type="submit">注册</button>
    </form>
</body>
</html>